138 PANCHKESTUS. 



shorter than the basal joint) ; the fourth equal in form to, hut shorter 

 than, the third ; the fifth to the eleventh of equal length with, hut 

 much broader than, the fourth ; the ultimate joint being attenuated. 

 Eyes large, globose, lateral, distant, situated at the base of the 

 head, and extending laterally almost as far as the anterior angles of 

 the thorax. 



Head short, transverse, somewhat produced in front, inclined at 

 right angles to the plane of the elytra. 



Thorax broader than the head, transverse, narrower in proportion 

 and less robust than in the preceding genus ; the sides depressed, 

 marginate, and more or less obsoletely subsinuate in outline (occa- 

 sionally dentate) ; for the most part deeply punctate or granulated, 

 and very finely pubescent or glabrous. 



Scutellum small, triangular, depressed below the plane of the 

 elytra, sometimes apparently obsolete. 



Elytra robust, broader than the thorax, not so convex as in the 

 preceding genus ; an antemedial transverse depression gives a pro- 

 minence to the anterior angles ; the surface is punctate-striate, and 

 in most cases covered sparingly with obsolete pubescence. 



Legs: anterior femora siibcylindrical, straight, hardly dilated me- 

 dially. The tibice are abruptly incurved at the immediate base, 

 straight, gradually but slightly thickened towards the apex. The 

 tarsi are short; the first joint elongate, triangular; the second 

 shorter but somewhat broader than the first ; the third much broader, 

 subcircular in form, and slightly bilobed ; the apical joint is not so 

 elongate as in other genera, attenuate, slightly incurved, and in- 

 crassated towards the terminal claw, which is bifid and simple (a 

 rudimentary tooth (almost obsolete) may be traced at the base of the 

 inner surface). Posterior femora incrassated (when viewed from 

 the side), ovate, gradually tapering towards the apex ; the surface 

 near the apex being subsinuate in outline, or hollowed out, near the 

 insertion of the tibia. The tibia is short, straight, slightly incrassated 

 at the extreme apex, where it is obliquely truncate, terminating 

 below the insertion of the tarsus in a single, strong incurved spur. 

 The tarsus is short and attenuated; the two first joints are trian- 

 gular, broadly truncate at the apex ; the third subcircular, broader 

 than the basal joints, bilobed, and fringed at its margin with dense 

 rigid pubescence ; the apical joint is dilated into a globular inflation 

 covering the ultimate claw. 



This genus, more closely allied to the latter (Leptotriehus) than to 

 any others, may be readily separated from it by its less convex form, 

 less elongated and attenuated palpi, by its narrower thorax, and less 

 incrassated form of antenna:. 



